/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2009 Pelican Ventures, Inc.
 * http://osgearth.org
 *
 * osgEarth is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */
#ifndef OSGEARTHSYMBOLOGY_FEATUREDATASET_ADAPTER_H
#define OSGEARTHSYMBOLOGY_FEATUREDATASET_ADAPTER_H 1

#include <VBF_3DMap/VBF_Symbology/Common>
#include <VBF_3DMap/VBF_Symbology/FeatureDataSet>
#include <VBF_3DMap/VBF_Features/FeatureSource>

namespace osgEarth { namespace Symbology 
{
    /**
     * Source for (possibly dynamic) feature data that is to be symbolized.
     */
    class OSGEARTHSYMBOLOGY_EXPORT FeatureDataSetAdapter : public FeatureDataSet
    {
    public:
        /**
         * Creates and returns an iterator that the caller can use to access
         * each of the Features in this dataset. Caller is responsible for the
         * return object.
         */
        osgEarth::Features::FeatureCursor* createCursor();

        /**
         * Gets the revision number of the dataset. Caller can use this is detect
         * whether it is up to date with the latest version of the data set.
         */
        int getRevision() const;

        FeatureDataSetAdapter(osgEarth::Features::FeatureSource* source);
        
    protected:

        ref_ptr<osgEarth::Features::FeatureSource> _features;
    };

} } // namespace osgEarth::Symbology


#endif

